[Verse 1: Ronan Keating, LeAnn Rimes]
Four o'clock in the morning
My mind's filled with a thousand thoughts of you
And how you left without warning
But lookin' back I'm sure you tried to talk it through
Now I see it so clearly
We're together but living separate lives
So I wanna tell you I'm sorry
Baby, I can't find the words
But if I could
Then you know I would
Yeah

[Chorus: Both, Ronan Keating]
No, I won't let go
Know what we can be
I won't watch my life crashin' down on me
Guess I had it all right there before my eyes
Yeah
Girl, I'm sorry now
You were the last thing on my mind

[Verse 2: LeAnn Rimes, Ronan Keating, Both]
You carried me like a river
How far we've come still surprises me
And now I look in the mirror
Look in the mirror
Starin' back as the man I used to
Be with you
How I long for you
Yeah-yeah
[Chorus: Both, Ronan Keating]
No, I won't let go
Know what we can be
I won't watch my life crashin' down on me
Guess I had it all right there before my eyes, yeah
Girl, I'm sorry now
You were the last thing on my mind

[Bridge: Ronan Keating, LeAnn Rimes, Both]
Girl, I'm sorry, I was wrong
Could've been there
Shoulda been so strong
So, I'm sorry (Ooh)
Whoa (No)

[Chorus: Both, Ronan Keating, LeAnn Rimes]
No, I won't let go
Know what we can be
I won't watch my life crashin' down on me
Guess I had it all right there before my eyes, yeah
Girl, I'm sorry (Oh, I'm sorry)
You were the last thing on my mind
On my mind
I won't watch my life crashin' down on me
Guess I had it all right there before my eyes, yeah
Girl, I'm sorry now
You were the last thing
On my mind
On my mind